Can i get some on the beakers
1) in which beaker did the eggs shown as purple circles, hatch?
2) the manipulated variable was
3) the responding variable was
4) beaker was control variable

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

2%? i tried finding the exact sorry if it's not 100% correct ; -;